The Stages Of Colon Cancer : Find It Out Early

It's estimated that there will be 106,100 new cases of colon cancer and 49,920 colon cancer deaths in the United States this year. For American men, colon cancer colorectal cancer is the third leading cause of cancer death (25,240), following prostate (27,360) and lung (88,900). For American women, colorectal cancer is also the third-most cause of cancer death (24,680), following breast (40,170) and lung (70,490). However, with adequate colonoscopy screening, it's believed many of these cancers can be detected early and many of these deaths can be prevented.

With colon cancer, the initial stage, which is Stage 0, is found in the epithelial tissue of the innermost lining of the colon. Here, doctors find cells that are abnormal but have not yet mobilized into full-blown cancer. To treat this stage, doctors will perform a polypectomy, which is a local excision to remove the tumor and surrounding tissue. This treatment is usually considered curative and often no further problems develop if caught early during colon cancer screening tests. In Stage I, the cancer has spread beyond the innermost layer to the second and third layers, as well as the inside wall of the colon. According to the National Cancer Institute's most recent data (1991 to 2000), there is a 93% survival rate for colon cancer patients with Stage I cancer.

As the stages of colon cancer progress, the undetected carcinoid tumors are allowed to fester, expand and spread out. Soon they eat their way through the middle layers of the colon into tissues around the rectum and the outermost colon layers. This is known as Stage II-A, which offers an 85% survival rate if detected. Similarly, Stage III-A, which involves cancer that has spread through the wall and affected three disease-fighting lymph nodes, offers an 83% survival rate if caught right away. Once the cancer has reached the bowels, uterus, prostate, bladder and other organs, such as in Stages II-B and III-C, the survival rate declines to 72% and 44%, respectively.

Colon cancer treatment is best done if caught early. Often Stage 0 and Stage I cancers can be treated using a colonoscope during a routine colonoscopy, removing small colon polyps or abnormal cells. If there are larger clusters of abnormal cells, then they may be removed through minimally invasive laparoscopic surgery, which involves a few minor incisions and a very short hospital stay. These procedures have seen vast improvements are very effective at removing early stage cancer. In later stages, if the surgery cannot simply remove the affected tumors or cells, then entire portions of the colon must be removed. In the past, patients of colon cancer in the advanced stages would need to wear a bag that collected their waste. Yet today, the colon can often be connected directly to the rectum to get rid of waste more naturally. In rare cases, a bag will still need to be implanted. Chemotherapy and radiation therapy are usually given during the more serious surgeries.